Nulon Pro-Strength additives are a high performance range of engine and fuel additives that utilise advanced additive technology formulated specifically to maintain reliability and increase performance.
Nulon Pro-Strength Rear Main Seal Stop Leak is a highly concentrated formula designed to rejuvenate dried, hardened and shrunken oil seals, bringing them back to life and reducing oil leaks. Nulon Pro-Strength Rear Main Seal Stop Leak also helps to repair valve stem oil seals, helping to reduce exhaust smoke on engine start up and take off.
Easy to use, simply add 1 bottle for every 5L of oil at any time and idle engine for 1 minute. Nulon Pro-Strength Rear Main Seal Stop Leak is suitable for use with all petrol, diesel and LPG engines and is safe to mix with all oil types including mineral, semi-synthetic and full synthetic blends.